Implement second part of PR 2600: NSError** parameter may be null, and should be checked before being dereferenced.
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@56318 91177308-0d34-0410-b5e6-96231b3b80d8
diff --git a/lib/Analysis/GRExprEngine.cpp b/lib/Analysis/GRExprEngine.cpp
index aa5ab6a..8d6fea7 100644
--- a/lib/Analysis/GRExprEngine.cpp
+++ b/lib/Analysis/GRExprEngine.cpp
@@ -1010,10 +1010,15 @@
// "Assume" that the pointer is NULL.
bool isFeasibleNull = false;
- const GRState* StNull = Assume(St, LV, false, isFeasibleNull);
+ GRStateRef StNull = GRStateRef(Assume(St, LV, false, isFeasibleNull),
+ getStateManager());
if (isFeasibleNull) {
+ // Use the Generic Data Map to mark in the state what lval was null.
+ const RVal* PersistentLV = getBasicVals().getPersistentRVal(LV);
+ StNull = StNull.set<GRState::NullDerefTag>(PersistentLV);
+
// We don't use "MakeNode" here because the node will be a sink
// and we have no intention of processing it later.